ABAP Select data from SAP table VEWA_WEIGH_FAVOR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VEWA_WEIGH_FAVOR table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to VEWA_WEIGH_FAVOR. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the VEWA_WEIGH_FAVOR table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_VEWA_WEIGH_FAVOR TYPE STANDARD TABLE OF VEWA_WEIGH_FAVOR,
      WA_VEWA_WEIGH_FAVOR TYPE VEWA_WEIGH_FAVOR,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <VEWA_WEIGH_FAVOR> TYPE VEWA_WEIGH_FAVOR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VEWA_WEIGH_FAVOR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VEWA_WEIGH_FAVOR
  INTO TABLE IT_VEWA_WEIGH_FAVOR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VEWA_WEIGH_FAVOR
*  INTO TABLE @DATA(IT_VEWA_WEIGH_FAVOR2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_VEWA_WEIGH_FAVOR INDEX 1 INTO DATA(WA_VEWA_WEIGH_FAVOR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VEWA_WEIGH_FAVOR ASSIGNING <VEWA_WEIGH_FAVOR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VEWA_WEIGH_FAVOR>-MANDT = 1.
<VEWA_WEIGH_FAVOR>-WDPLANT = 1.
<VEWA_WEIGH_FAVOR>-CAR_LICENSE_NUM = 1.
<VEWA_WEIGH_FAVOR>-CAR = 1.
<VEWA_WEIGH_FAVOR>-TRAILER_LICENSE_ = 1.

ENDLOOP.

LOOP AT IT_VEWA_WEIGH_FAVOR INTO WA_VEWA_WEIGH_FAVOR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VEWA_WEIGH_FAVOR-TRAILER, sy-vline,
  WA_VEWA_WEIGH_FAVOR-TREATMENT, sy-vline,
  WA_VEWA_WEIGH_FAVOR-CAR_BRGEW, sy-vline,
  WA_VEWA_WEIGH_FAVOR-CAR_BRUNIT, sy-vline,
  WA_VEWA_WEIGH_FAVOR-TRAILER_BRGEW, sy-vline,
  WA_VEWA_WEIGH_FAVOR-TRAILER_BRUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VEWA_WEIGH_FAVOR you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_VEWA_WEIGH_FAVOR TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_VEWA_WEIGH_FAVOR INTO WA_VEWA_WEIGH_FAVOR.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field WDPLANT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VEWA_WEIGH_FAVOR-WDPLANT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEWA_WEIGH_FAVOR-WDPLANT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CAR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VEWA_WEIGH_FAVOR-CAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEWA_WEIGH_FAVOR-CAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TRAILER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VEWA_WEIGH_FAVOR-TRAILER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEWA_WEIGH_FAVOR-TRAILER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field CAR_BRUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VEWA_WEIGH_FAVOR-CAR_BRUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEWA_WEIGH_FAVOR-CAR_BRUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field TRAILER_BRUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VEWA_WEIGH_FAVOR-TRAILER_BRUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEWA_WEIGH_FAVOR-TRAILER_BRUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field WASTE
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_VEWA_WEIGH_FAVOR-WASTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEWA_WEIGH_FAVOR-WASTE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VSTELLE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VEWA_WEIGH_FAVOR-VSTELLE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEWA_WEIGH_FAVOR-VSTELLE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VEWA_WEIGH_FAVOR-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEWA_WEIGH_FAVOR-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CONTRACT_VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VEWA_WEIGH_FAVOR-CONTRACT_VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEWA_WEIGH_FAVOR-CONTRACT_VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field APPNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VEWA_WEIGH_FAVOR-APPNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEWA_WEIGH_FAVOR-APPNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER_GE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VEWA_WEIGH_FAVOR-PARTNER_GE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEWA_WEIGH_FAVOR-PARTNER_GE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER_TR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VEWA_WEIGH_FAVOR-PARTNER_TR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEWA_WEIGH_FAVOR-PARTNER_TR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER_DI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VEWA_WEIGH_FAVOR-PARTNER_DI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEWA_WEIGH_FAVOR-PARTNER_DI.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_VEWA_WEIGH_FAVOR_STR, 
MANDT TYPE STRING,
WDPLANT TYPE STRING,
CAR_LICENSE_NUM TYPE STRING,
CAR TYPE STRING,
TRAILER_LICENSE_ TYPE STRING,
TRAILER TYPE STRING,
TREATMENT TYPE STRING,
CAR_BRGEW TYPE STRING,
CAR_BRUNIT TYPE STRING,
TRAILER_BRGEW TYPE STRING,
TRAILER_BRUNIT TYPE STRING,
WDPPROTYNR TYPE STRING,
WEIGHING_TYPE TYPE STRING,
WASTE TYPE STRING,
WASTE_DESC TYPE STRING,
VSTELLE TYPE STRING,
KUNNR TYPE STRING,
ZTERM TYPE STRING,
ZTAGG TYPE STRING,
CONTRACT_VBELN TYPE STRING,
LGNUM TYPE STRING,
LGTYP TYPE STRING,
LGPLA TYPE STRING,
APPNO TYPE STRING,
PARTNER_GE TYPE STRING,
PARTNER_TR TYPE STRING,
PARTNER_DI TYPE STRING,
VTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VEWA_WEIGH_FAVOR_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_VEWA_WEIGH_FAVOR_STR-MANDT sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-WDPLANT sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-CAR_LICENSE_NUM sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-CAR sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-TRAILER_LICENSE_ sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-TRAILER sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-TREATMENT sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-CAR_BRGEW sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-CAR_BRUNIT sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-TRAILER_BRGEW sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-TRAILER_BRUNIT sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-WDPPROTYNR sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-WEIGHING_TYPE sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-WASTE sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-WASTE_DESC sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-VSTELLE sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-KUNNR sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-ZTERM sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-ZTAGG sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-CONTRACT_VBELN sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-LGNUM sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-LGTYP sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-LGPLA sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-APPNO sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-PARTNER_GE sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-PARTNER_TR sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-PARTNER_DI sy-vline 
WA_VEWA_WEIGH_FAVOR_STR-VTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.